. 2019 Dec 11;61(1):146–160. doi: 10.1093/jrr/rrz077

Table 5. Number of treatment devices and their functions by scale classification.

Treatment devices and their functions	Scale category (number of institutions)						Total (709)
Treatment devices and their functions	A (132)	B (219)	C (136)	D (82)	E (48)	F (92)
LINAC	127	215	139	109	76	198	864
With dual energy function	75	157	111	89	61	158	651
With 3DCRT function (MLC width ≤ 1.0 cm)	93	177	125	102	70	192	759
With IMRT function	28	79	72	78	51	158	466
With cone beam CT or CT on rail	24	65	65	59	37	99	349
With treatment position verification system	₂₉	54	60	54	38	88	323
(X-ray perspective image)
With treatment position verification system (other than those above)	26	61	38	42	18	72	257
Annual no. patients/LINAC	77.7	171.8	281.0	315.3	349.0	399.3	261.4
CyberKnife^®	2	6	0	2	3	6	19
Novalis^®	2	1	5	10	8	9	35
Tomotherapy^®	2	6	1	5	5	3	22
Particle	0	0	1	1	1	6	9
Microtoron	1	2	0	2	1	2	8
Telecobalt (actual use)	0 (0)	2 (0)	1 (0)	0 (0)	0 (0)	0 (0)	3 (0)
Gamma Knife®	4	11	7	8	6	8	44
Other accelerator	0	1	1	2	0	3	7
Other external irradiation device	0	0	2	0	0	4	6
New type ⁶⁰Co RALS (actual use)	0 (0)	4 (3)	6 (6)	3 (2)	5 (5)	4 (4)	22 (20)
Old type ⁶⁰Co RALS (actual use)	0 (0)	4 (1)	3 (1)	0 (0)	2 (1)	0 (0)	9 (3)
¹⁹²Ir RALS (actual use)	1 (0)	7 (7)	13 (13)	25 (23)	19 (19)	69 (68)	134 (130)
¹³⁷Cs RALS (actual use)	0 (0)	1 (1)	0 (0)	0 (0)	0 (0)	0 (0)	1 (1)

LINAC = linear accelerator, 3DCRT = 3D conformal radiotherapy, MLC = multileaf collimator, IMRT = intensity-modulated radiotherapy, CT = computed tomography, Co = cobalt, RALS = remote-controlled after-loading system, Ir = iridium, Cs = Caesium.