500GeV Reference

 

Straw-man TeV

       
      

A0

B0

C0

A1

B1

B1a

B1b

C1

 
   

no TF

TF

 

300MW 5%BS

300MW 10%BS

LongBunch

    

LongBunch

 
 

Ecm

GeV

500

500

 

1000

1000

1000

1000

1000

1000

1000

1000

 
 

gamma

 

4.89E+05

4.89E+05

 

9.78E+05

9.78E+05

9.78E+05

9.78E+05

9.78E+05

9.78E+05

9.78E+05

9.78E+05

 
 

N

e10

2.0

2.0

 

2.0

2.0

2.0

1.737

1.737

1.737

1.737

1.737

 
 

frep

Hz

5.0

5.0

 

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

 
 

Nb

 

1312

1312

 

2280

2280

2280

2625

2625

2625

2625

2625

 
 

PB

MW

10.5

10.5

 

29.2

29.2

29.2

29.2

29.2

29.2

29.2

29.2

 
 

sigz

mm

0.3

0.3

 

0.25

0.15

0.3

0.25

0.15

0.2

0.225

0.3

 
 

enx

m

1.0E-05

1.0E-05

 

1.0E-05

1.0E-05

1.0E-05

1.0E-05

1.0E-05

1.0E-05

1.0E-05

1.0E-05

 
 

eny

m

3.5E-08

3.5E-08

 

3.0E-08

3.0E-08

3.0E-08

3.0E-08

3.0E-08

3.0E-08

3.0E-08

3.0E-08

 
 

betax

mm

11.0

11.0

 

30.0

18.0

11.0

22.6

13.6

12.0

11.0

8.6

 
 

betay

mm

0.48

0.20

 

0.25

0.15

0.30

0.25

0.15

0.20

0.23

0.30

 
 

sigx

nm

474.2

474.2

 

553.7

428.9

335.3

480.6

372.8

350.2

335.3

296.5

 
 

sigy

nm

5.86

3.78

 

2.77

2.14

3.03

2.77

2.14

2.48

2.63

3.03

 
 

theta_x

ur

43.1

43.1

 

18.5

23.8

30.5

21.3

27.4

29.2

30.5

34.5

 
 

theta_y

ur

12.2

18.9

 

11.1

14.3

10.1

11.1

14.3

12.4

11.7

10.1

 
 

Dx

 

0.30

0.30

 

0.09

0.09

0.30

0.11

0.11

0.16

0.20

0.34

 
 

Dy

 

24.6

38.2

 

18.7

18.7

33.7

18.7

18.7

22.9

25.4

33.0

 
 

Upsilon

 

0.062

0.062

 

0.128

0.274

0.175

0.128

0.274

0.218

0.203

0.171

 
 

Ngamma

 

1.7

1.7

 

1.4

1.7

2.3

1.4

1.7

1.9

2.0

2.3

 
 

deltaB

 

3.7%

3.7%

 

5.3%

10.9%

10.7%

5.3%

10.9%

10.2%

10.2%

10.4%

 
 

HDx

 

1.1

1.1

 

1.0

1.0

1.1

1.0

1.0

1.0

1.0

1.2

 
 

HDy

 

6.1

2.8

 

3.5

3.5

4.5

3.5

3.5

3.9

4.0

4.5

 
 

HDy

 

2.0

1.5

 

1.5

1.5

1.8

1.5

1.5

1.6

1.6

1.8

 
 

Lgeo

 

7.51E+33

1.16E+34

 

1.89E+34

3.16E+34

2.85E+34

1.89E+34

3.15E+34

2.91E+34

2.86E+34

2.80E+34

 
 

L (formula)

 

1.47E+34

1.75E+34

 

2.89E+34

4.82E+34

5.06E+34

2.90E+34

4.82E+34

4.61E+34

4.65E+34

5.05E+34

 
 

Simulation (noTF)

    

A0

B0

C0

A1

B1

B1a

B1b

C1

 
 

Ngamma

    

1.445

1.762

2.475

1.446

1.758

  

2.453

 
 

deltaB

%

   

5.277

9.905

10.909

5.288

9.899

  

10.735

 
 

L

    

2.825E+034

4.74E+34

4.87E+34

2.84E+34

4.75E+34

  

4.84E+34

 
 

L(1%)

%

   

61.5

48.4

42.7

61.2

48.5

  

42.9

 
 

pT(E=50MeV) by CAIN

MeV/c

   

8.58

11.14

8.575

8.27

10.62

  

8.08

 
 

simulation (TF)

             
 

Ngamma

    

1.437

1.752

2.494

1.448

1.757

1.939

2.054

2.476

 
 

deltaB

%

   

5.182

9.826

11.05

5.265

9.85

9.603

9.796

10.91

 
 

L

    

3.34E+34

5.60E+34

5.86E+34

3.35E+34

5.61E+34

5.50E+34

5.56E+34

5.80E+34

 
 

L(1%)

%

   

60.8

48.1

41.8

60.5

47.8

46.65

45.553

42.1

 
 

pT(E=50MeV) by CAIN

MeV/c

   

8.67

11.14

8.677

8.18

10.6

9.3

8.8

8.176

 
 

L(TR)/L(no)

    

1.195

1.185

1.203

1.182

1.181

#DIV/0!

#DIV/0!

1.200

 
               
               

Scenario 1 Upgrade

                 

I have assumed we will have a two-stage bunch compressor similar to the RDR,

      

E0=

15

GeV

        

and therefore, the main linacs begin at 15 GeV (as in the RDR).

             

Proposed working assumption

   
                  
      

RDR x2 @ 4Hz

 

45MV/m 1x1010 @ 4Hz

 

45MV/m 2x1010 @ 4Hz 300MW

 
    

RDR Reference First-stage machine

 

Base

Upgrade

Total

 

Base

Upgrade

Total

 

Base

Upgrade

Total

 
 

Gradient

MV/m

 

31.5

 

31.5

31.5

  

31.5

45

  

31.5

45

  
 

Q0

  

1.0E+10

 

1.0E+10

1.0E+10

  

1.0E+10

1.0E+10

  

1.0E+10

2.0E+10

  
 

Energy gain

GeV

 

470

 

470

500

970

 

470

500

970

 

470

500

970

 
 

Rep. rate

Hz

 

5

 

4

  

4

  

4

  
                  
 

Linac length factor

  

1.0

 

1.0

1.1

2.1

 

1.0

0.7

1.7

 

1.0

0.7

1.7

 
                  
 

Particles per bunch

x1010

 

2.0

 

2.0

  

2.0

  

2.0

  
 

Number of bunches

  

2625

 

2625

  

2625

  

2280

  
 

Average beam power (dump)

MW

 

21.0

 

33.6

  

33.6

  

29.2

  
 

Dtb*fDR

  

240

 

238

  

238

  

238

  
 

Dtb

ns

 

369.2

 

366.2

  

366.2

  

366.2

  
 

Beam pulse

us

 

969.2

 

961.2

  

961.2

  

834.8

  
 

Beam current

mA

 

8.68

 

8.75

  

8.75

  

8.75

  
 

Matched QL

x106

 

3.6

 

3.6

3.6

  

3.6

5.2

  

3.6

5.2

  
 

tfill

us

 

617.3

 

612.1

612.1

  

612.1

874.5

  

612.1

874.5

  
 

RF pulse length

ms

 

1.59

 

1.57

1.57

  

1.57

1.84

  

1.45

1.71

  
 

RF to beam P eff.

  

61%

 

61%

61%

  

61%

52%

  

58%

49%

  
                  

RF


[ANNOTATION:

ON '2011-11-09T00:00:00'
NOTE: 'Nicholas Walker:'
NOTE: 'Main linac only.']

Average linac beam power

MW

 

19.8

 

15.8

16.8

32.6

 

15.8

16.8

32.6

 

13.7

14.6

28.3

 
 
[ANNOTATION:

ON '2011-11-09T00:00:00'
NOTE: 'Nicholas Walker:'
NOTE: 'Does not include additional overhead for gradient spread.']

Average RF power

MW

 

32.4

 

25.9

27.5

53.4

 

25.9

32.1

58.0

 

23.8

29.9

53.7

 
 

AC-RF Efficiency

  
[ANNOTATION:

ON '2011-11-09T00:00:00'
NOTE: 'Nicholas Walker:'
NOTE: 'Estimated from RDR table: adjusted to give 76 MW RF power (cell below).']

43%

 

43%

43%

  

43%

43%

  

43%

43%

  
 

Total RF AC power

MW

 

76.0

 

60.8

64.7

125.5

 

60.8

75.5

136.3

 

55.9

70.3

126.2

 
 

Total efficiency

  

26%

 

26%

26%

  

26%

22%

  

25%

21%

  
 

RF power dumped

MW

 

56.2

 

45.0

47.9

92.8

 

45.0

58.6

103.6

 

42.2

55.7

97.8

 
                  

Cryo

Static cryo power

MW

 

12.2

 

12.2

13.0

25.2

 

12.2

9.1

21.3

 

12.2

9.1

21.3

 
 

RF dynamic factor

  

8.2E-04

 

6.5E-04

6.9E-04

  

6.5E-04

1.2E-03

  

6.0E-04

5.5E-04

  
 

RF dynamic

MW

 

16.5

 

13.1

13.9

27.0

 

13.1

23.4

36.5

 

12.1

11.0

23.0

 
 

HOM dynamic

MW

 

4.3

 

3.5

3.7

7.1

 

3.5

2.6

6.0

 

3.0

2.2

5.2

 
 

Total cryo AC power

MW

 

33.0

 

28.8

30.6

59.4

 

28.8

35.1

63.9

 

27.3

22.3

49.6

 
                  

CF

Water systems

MW

 

9.9

 

6.3

6.7

13.0

 

6.3

8.2

14.5

 

5.9

7.8

13.7

 
 

Conv.

MW

 

13.5

 

13.5

14.4

27.9

 

13.5

10.1

23.6

 

13.5

10.1

23.6

 
                  

Total Main Linac

 

MW

 

132.4

 

109.4

116.4

225.8

 

109.4

128.9

238.3

 

102.7

110.4

213.1

 
                  

e- source

 

MW

 

4.76

   

4.76

   

4.76

   

4.76

 

e+ source

 

MW

 

22.27

   

22.27

   

22.27

   

22.27

 

DR

 

MW

 

26.29

   

26.29

   

26.29

   

26.29

 

RTML

 

MW

 

17.14

   

17.14

   

17.14

   

17.14

 

BDS

 

MW

 

7.72

   

11.58

   

11.58

   

11.58

 

Dumps

 

MW

 

3.95

   

5.14

   

5.14

   

4.72

 
                  

Grand total

 

MW

 

215

   

313

   

325

   

300